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Unable to get Sum of Column values(Checkbox checked) using jQuery Datatables. I'm trying to add sum of amount columns dynamically. If we uncheck amount will reduce automatically. I tried below code. Could you please suggest what could be the issue
$(document).ready(function() {
var creditAmount =0
$('#firstTable').DataTable();
$("#firstTable").on('change', function(){
var checkedCount = $("#firstTable input:checked").length;
for (var i = 0; i < checkedCount; i++) {
var amount = $(this).find('td:eq(4)').text();
alert(amount);
if (amount != "") {
creditAmount += parseFloat(amount);
} else {
creditAmount = 0;
}
}
$("#idSmofAmount").text(creditAmount);
});
} );<link href="https://cdn.datatables.net/1.10.22/css/jquery.dataTables.min.css" rel="stylesheet"/>
<script src="https://code.jquery.com/jquery-3.5.1.js"></script>
<script src="https://cdn.datatables.net/1.10.22/js/jquery.dataTables.min.js"></script>
<div>
Count:: <span ="idSmofAmount"></span>
</div>
<table id="firstTable" class="display" cellspacing="0" width="100%">
<thead>
<tr>
<th><input type="checkbox"/></th>
<th>Name</th>
<th>Position</th>
<th>Office</th>
<th>Amount</th>
<th>Start date</th>
<th>Salary</th>
</tr>
</thead>
<tfoot>
<tr>
<th><input type="checkbox"/></th>
<th>Name</th>
<th>Position</th>
<th>Office</th>
<th>Age</th>
<th>Start date</th>
<th>Salary</th>
</tr>
</tfoot>
<tbody>
<tr>
<td><input type="checkbox"/></td>
<td>Tiger Nixon</td>
<td>System Architect</td>
<td>Edinburgh</td>
<td>61</td>
<td>2011/04/25</td>
<td>$320,800</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Garrett Winters</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>63</td>
<td>2011/07/25</td>
<td>$170,750</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Ashton Cox</td>
<td>Junior Technical Author</td>
<td>San Francisco</td>
<td>66</td>
<td>2009/01/12</td>
<td>$86,000</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Cedric Kelly</td>
<td>Senior Javascript Developer</td>
<td>Edinburgh</td>
<td>22</td>
<td>2012/03/29</td>
<td>$433,060</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Airi Satou</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>33</td>
<td>2008/11/28</td>
<td>$162,700</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Brielle Williamson</td>
<td>Integration Specialist</td>
<td>New York</td>
<td>61</td>
<td>2012/12/02</td>
<td>$372,000</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Herrod Chandler</td>
<td>Sales Assistant</td>
<td>San Francisco</td>
<td>59</td>
<td>2012/08/06</td>
<td>$137,500</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Rhona Davidson</td>
<td>Integration Specialist</td>
<td>Tokyo</td>
<td>55</td>
<td>2010/10/14</td>
<td>$327,900</td>
</tr>
</tbody>
</table>
708
Found few issues in your code:
this reference inside the amount variablecreditAmount doesn't reset when the change event is triggeredCode:
$(document).ready(function() {
var creditAmount = 0
$('#firstTable').DataTable();
$("#firstTable").on('change', function() {
var checkedCount = $("#firstTable input:checked").length;
var creditAmount = 0
for (var i = 0; i < checkedCount; i++) {
var amount = $("#firstTable input:checked")[i].parentNode.parentNode.children[4].innerHTML
if (amount != "") {
creditAmount += parseFloat(amount);
} else {
creditAmount = 0;
}
}
$("#idSmofAmount").text(creditAmount);
});
});<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link href="https://cdn.datatables.net/1.10.22/css/jquery.dataTables.min.css" rel="stylesheet" />
<script src="https://code.jquery.com/jquery-3.5.1.js"></script>
<script src="https://cdn.datatables.net/1.10.22/js/jquery.dataTables.min.js"></script>
<div>
Count::
<span id="idSmofAmount"></span>
</div>
<table id="firstTable" class="display" cellspacing="0" width="100%">
<thead>
<tr>
<th><input type="checkbox" /></th>
<th>Name</th>
<th>Position</th>
<th>Office</th>
<th>Amount</th>
<th>Start date</th>
<th>Salary</th>
</tr>
</thead>
<tfoot>
<tr>
<th><input type="checkbox" /></th>
<th>Name</th>
<th>Position</th>
<th>Office</th>
<th>Age</th>
<th>Start date</th>
<th>Salary</th>
</tr>
</tfoot>
<tbody>
<tr>
<td><input type="checkbox" /></td>
<td>Tiger Nixon</td>
<td>System Architect</td>
<td>Edinburgh</td>
<td>61</td>
<td>2011/04/25</td>
<td>$320,800</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>Garrett Winters</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>63</td>
<td>2011/07/25</td>
<td>$170,750</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>Ashton Cox</td>
<td>Junior Technical Author</td>
<td>San Francisco</td>
<td>66</td>
<td>2009/01/12</td>
<td>$86,000</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>Cedric Kelly</td>
<td>Senior Javascript Developer</td>
<td>Edinburgh</td>
<td>22</td>
<td>2012/03/29</td>
<td>$433,060</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>Airi Satou</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>33</td>
<td>2008/11/28</td>
<td>$162,700</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>Brielle Williamson</td>
<td>Integration Specialist</td>
<td>New York</td>
<td>61</td>
<td>2012/12/02</td>
<td>$372,000</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>Herrod Chandler</td>
<td>Sales Assistant</td>
<td>San Francisco</td>
<td>59</td>
<td>2012/08/06</td>
<td>$137,500</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>Rhona Davidson</td>
<td>Integration Specialist</td>
<td>Tokyo</td>
<td>55</td>
<td>2010/10/14</td>
<td>$327,900</td>
</tr>
</tbody>
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